gardening: mark editing/inserting/return-key-with-selection-003.html as NeedsRebaseline

BUG=391052
TBR=jochen

Review URL: https://codereview.chromium.org/364853006

git-svn-id: svn://svn.chromium.org/blink/trunk@177420 bbb929c8-8fbe-4397-9dbb-9b2b20218538